linux/kernel/trace
Jiri Olsa 0a74c5b3d2 ftrace/perf: Check sample types only for sampling events
Currently we check sample type for ftrace:function events
even if it's not created as a sampling event. That prevents
creating ftrace_function event in counting mode.

Make sure we check sample types only for sampling events.

Before:
  $ sudo perf stat -e ftrace:function ls
  ...

   Performance counter stats for 'ls':

     <not supported>      ftrace:function

         0.001983662 seconds time elapsed

After:
  $ sudo perf stat -e ftrace:function ls
  ...

   Performance counter stats for 'ls':

              44,498      ftrace:function

         0.037534722 seconds time elapsed

Suggested-by: Namhyung Kim <namhyung@kernel.org>
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Acked-by: Steven Rostedt <rostedt@goodmis.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Arnaldo Carvalho de Melo <acme@kernel.org>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Vince Weaver <vincent.weaver@maine.edu>
Link: http://lkml.kernel.org/r/1458138873-1553-2-git-send-email-jolsa@kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2016-03-31 10:30:45 +02:00
..
blktrace.c
bpf_trace.c
ftrace.c
Kconfig
Makefile
power-traces.c
ring_buffer_benchmark.c
ring_buffer.c
rpm-traces.c
trace_benchmark.c
trace_benchmark.h
trace_branch.c
trace_clock.c
trace_entries.h
trace_event_perf.c ftrace/perf: Check sample types only for sampling events 2016-03-31 10:30:45 +02:00
trace_events_filter_test.h
trace_events_filter.c tracing: Do not have 'comm' filter override event 'comm' field 2016-03-04 09:57:10 -05:00
trace_events_trigger.c
trace_events.c tracing: Do not have 'comm' filter override event 'comm' field 2016-03-04 09:57:10 -05:00
trace_export.c
trace_functions_graph.c
trace_functions.c
trace_irqsoff.c
trace_kdb.c
trace_kprobe.c
trace_mmiotrace.c
trace_nop.c
trace_output.c
trace_output.h
trace_printk.c
trace_probe.c
trace_probe.h
trace_sched_switch.c
trace_sched_wakeup.c
trace_selftest_dynamic.c
trace_selftest.c
trace_seq.c
trace_stack.c tracing, kasan: Silence Kasan warning in check_stack of stack_tracer 2016-02-19 12:36:44 -05:00
trace_stat.c
trace_stat.h
trace_syscalls.c tracing/syscalls: Rename "/format" tracepoint field name "nr" to "__syscall_nr: 2016-02-29 11:34:53 -03:00
trace_uprobe.c
trace.c
trace.h